. >>> president obama will host the white house science fair. last year the big hit was the president checking out the marshmallow cannon. >>> my must read is the story of tamerlan tsarnaev's wife described as the all-american girl. the mother of his young child. it's on our facebook page. what do you think? that's great. it won't take long, will it? nah. okay. this, won't take long will it? no, not at all. how many of these can we do on our budget? more than you think. didn't take very long, did it? this spring, dig in and save. that's nice. post it. already did. more saving. more doing. that's the power of the home depot. dig in and save with vigoro one-quart annuals, four for just ten bucks. >>> right now on capitol hill it's the first test for the bipartisan immigration bill which may face new road blockses but of the boston bombing. suspects were immigrants. the senate judiciary committee is holding what was expected to be a straightforward hearing. some republicans want to slow the process which led to tension between the panel's leaders j